Abstract: Cross-sectoral collaboration is a common problem in organizational management. Different from the emphasis on logic conflict from the perspective of multiple institutional logic, the hybrid logic perspective attaches more importance to the coexistence and integration of logic, providing a new theoretical explanation for the improvement of cross-department collaboration efficiency. The essence of cross-sectoral collaboration that social enterprises participate in is collective behavior driven by hybrid logic, which could reduce logical conflicts that cannot be solved by traditional cross-sectoral collaboration. Based on the theory of hybrid logic, this paper argues that the cross-sectoral collaboration involving social enterprises has stronger logical centrality and higher logical connectivity, and the effectiveness and sustainability of collaboration could be achieved by improving the degree and depth of collaboration. Further research shows that the cross-sectoral collaboration of social enterprises has formed a variety of hybrid logic practice modes, such as platform type, focus type, bridge type and patchwork type.The mechanism research of “logical starting point, logical behavior, logical result” of mixed logic proposed in this paper makes up for the deficiency of existing research on multiple institutional logic, deepens the understanding of the functions of social enterprises and hybrid organizations, and lays a more solid theoretical foundation for cross-department collaborative optimization and governance improvement.